I was getting my medical care through the Veterans Administration. My city has a local clinic which offers primary care and mental health care. I don't have a service connected disability, but they said that wasn't a problem. They were happy to treat me. After 10 years, I found out why. My private health care insurance was subsidizing their operations. When I reached 65 and transitioned to medicare, they sent me a letter stating my benefits had expired. (I no longer carried private health insurance). I had been prescribed a beta blocker and unbeknownst to me I was in Afib. I had the saphenous vein removed from my right leg as part of a CABGX5 procedure some 20 years prior. And, I sit too long at this computer. I was riding my bicycle to work 15 miles each day and one night I woke up and my calf felt like I had sprained it. I knew I had not. It was warm to the touch. I consulted with Dr Google and he said I might have a Deep Vein Thrombosis and should go to the ER. I did and they admitted me. My neighbor is a doctor and he came to visit and he brought his stethoscope. He checked me out and said my heart rate was in the low 40s which was too low. I discontinued the beta blocker. I was put on blood thinners until my pulmonary emboli resolved. I saw a cardiologist and he read my medications to me and when he got to the beta blocker I said I had discontinued it. He looked at me sternly and asked why. I said my heart rate was too low which probably contributed to the DVT. He thought about it for a second and said "that's probably a good idea." lol They wanted to put me on a blood thinner for life, but I refused. You only do that if you don't know what caused the DVT. I know what caused my DVT. Low heart rate (suppressed by beta blocker), and irregular heart beat (Afib), sitting too long at my computer with a missing saphenous vein. My heart rate is in the 160s now, and I am in sinus rhythm following an ablation.